البراكين النشطة في العالم من شنومكس / شنومكس / شنومكس ل شنومكس / شنومكس / شنومكس

18 volcanoes where active in the world last week (week from 05/01/2011 to 11/01/2011)

New activity or eruptions

Manam volcano and island - Papua New Guinea - image courtesy abc.net.au

إتنا, Sicily (Italy)
Kizimen, Eastern Kamchatka (Russia)
Manam, Northeast of New Guinea (SW Pacific)
See below for more information

نشاط مستمر
Bulusan, Luzon (Philippines)
Dukono, Halmahera (Indonesia)
فويغو، غواتيمالا
كاريمسكي، شرق كامتشاتكا (روسيا)
Kilauea, Hawaii (USA)
Merapi, Central Java (Indonesia)
بكايا وغواتيمالا
ريفينتادور، إكوادور
Sakura-jima, Kyushu
San Cristóbal, Nicaragua
Santa María, Guatemala
شيفيلوش، وسط كامتشاتكا (روسيا)
Soufrière Hills, Montserrat
Suwanose-jima, Ryukyu Islands (Japan)
تونغوراهوا، إكوادور

Detail description of new activity

إتنا، صقلية
After a few hours of quiescence on the evening of 3 January, very weak emissions of incandescent material (probably mostly hot gas with little or no solid material) resumed from the pit crater located on the lower E flank of Etna's Southeast Crater cone. Later that evening intense incandescence from the pit crater was reported by observers in the village of S. Alfio on the E flank of Etna. The emissions continued on 4 January at a rate of 4-6 events per hour, producing small plumes that appeared as thermal anomalies in thermal video footage. Activity ceased in the afternoon. Very weak emissions of incandescent material (probably again mostly hot gas) were observed on 5 January at the same rate as the previous day. A camera recorded white vapor plumes occasionally accompanied by some grayish-brown ash. Weak, intermittent incandescence from the pit crater was observed at night during 5-6 January. Emissions on 6 January occurred at a frequency of 3-4 events per hour, producing small plumes seen in thermal camera footage. That same day, intense degassing occurred from the W vent of Bocca Nuova (BN-1), and from the Northeast Crater, where pulsating emissions produced mushroom-shaped vapor plumes.
Starting in the late evening of 11 January, the seismic network recorded a slight increase in volcanic tremor amplitude. The amplitude peaked early on 12 January, and the source of the tremor shifted from a location N of the Northeast Crater towards the Southeast Crater. Weak Strombolian activity from the pit crater accompanied these changes on 11 January, and gradually became more intense on 12 January.
Geologic Summary. يحتوي جبل إتنا ، الشاهق فوق كاتانيا ، ثاني أكبر مدن صقلية ، على واحدة من أطول سجلات العالم الموثقة للبراكين التاريخية ، والتي يرجع تاريخها إلى 1500 قبل الميلاد. تغطي تدفقات الحمم البركانية التاريخية جزءًا كبيرًا من هذا الطبق الهابط البازلتيكي الضخم ، وهو الأعلى والأكثر كثافة في إيطاليا. يحدث نمطان من النشاط البركاني عادة في إتنا. تحدث الانفجارات المتفجرة المستمرة ، في بعض الأحيان مع انبعاثات طفيفة للحمم البركانية ، من واحد أو أكثر من حفر القمة البارزة الثلاثة ، الحفرة الوسطى ، وشرق البحر ، وشرق البحر. ثوران الجناح ، عادة مع معدلات انصباب أعلى ، يحدث بشكل أقل تواتراً وينشأ عن تصدعات تنفتح تدريجياً نحو الأسفل من قرب القمة. بدأت فترة من الانفجارات المتفجرة المتقطعة الأكثر كثافة من فوهات قمة إتنا في 1995. تتم مراقبة البركان النشط من قبل المعهد الوطني للبراكين الجيولوجية (INGV) في كاتانيا.

Kizimen, Eastern Kamchatka (Russia)
KVERT reported that ash emissions from Kizimen had been essentially continuous during 31 December-7 January, producing ash plumes mostly below altitudes of 6-8 km (20,000-26,000 ft) a.s.l. reported by pilots or observed insatellite imagery. Seismicity remained high but variable and volcanic tremor continued to be recorded. A thermal anomaly over the volcano was observed in satellite imagery. On 5 January ash plumes drifted more than 500 km ENE. Ashfall was reported on the Komandorsky Islands, 350-500 km E. The Tokyo VAAC reported that ash continued to be observed in satellite imagery on 5 Janaury. According to information from KVERT and analyses of satellite imagery, a possible eruption on 6 January produced a plume that rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted E. Subsequent satellite images that same day showed continuing ash emissions. Ash plumes drifted NW on 9 January, and drifted NW again on 11 January, at an altitude of 2.7 km (9,000 ft) a.s.l. The Color Code remained at Red.
Geologic Summary. Kizimen is an isolated, conical stratovolcano that is morphologically similar to Mount St. Helens prior to its 1980 eruption. The summit of Kizimen consists of overlapping lava domes, and blocky lava flows descend the flanks of the volcano, which is the westernmost of a volcanic chain north of Kronotsky volcano. The 2,376-m-high Kizimen was formed during four eruptive cycles beginning about 12,000 years ago and lasting 2,000-3,500 years. The largest eruptions took place about 10,000 and 8300-8400 years ago, and three periods of longterm lava-dome growth have occurred. The latest eruptive cycle began about 3,000 years ago with a large explosion and was followed by lava-dome growth lasting intermittently about 1,000 years. An explosive eruption about 1,100 years ago produced a lateral blast and created a 1.0 x 0.7 km wide crater breached to the NE, inside which a small lava dome (the fourth at Kizimen) has grown. A single explosive eruption, during 1927-28, has been recorded in historical time.

Manam, Northeast of New Guinea
RVO reported that during 5-6 January low roaring from Manam's South Crater was heard and weak but steady crater incandescence was observed at night. Diffuse blue vapor was emitted from South Crater on 6 January. During 6-8 January white vapor rose from Main Crater and incandescence from both craters was observed at night. Diffuse brown ash plumes occasionally rose from South Crater on 7 January. The next day the Alert Level was lowered from Stage 3 to Stage 2. During 8-9 January Main Crater emitted white vapor and South Crater produced occasional gray ash plumes that drifted to the SE part of the island. Emissions from Main Crater turned to gray on 10 January. White-to-blue vapor plumes rose from South Crater. Both craters were incandescent at night during 8-10 January.
Geologic Summary. The 10-km-wide island of Manam, lying 13 km off the northern coast of mainland Papua New Guinea, is one of the country's most active volcanoes. Four large radial valleys extend from the unvegetated summit of the conical 1807-m-high basaltic-andesitic stratovolcano to its lower flanks. These "avalanche valleys," regularly spaced 90 degrees apart, channel lava flows and pyroclastic avalanches that have sometimes reached the coast. Two summit craters are present; both are active, although most historical eruptions have originated from the southern crater, concentrating eruptive products during much of the past century into the SE avalanche valley. Frequent historical eruptions, typically of mild-to-moderate scale, have been recorded at Manam since 1616. Occasional larger eruptions have produced pyroclastic flows and lava flows that reached flat-lying coastal areas and entered the sea, sometimes impacting populated areas.

Source : Smithsonian Institution

وقد تم تطوير كواكيسوس لمساعدة بنشاط الناس الذين يتم القبض عليهم في زلزال + يسلم "تقرير زلزال" المعلومات على اي فون الخاص بكQuakeSOS هو تطبيق آي فون المجاني التي وضعتها Vervaeck ارمان (الزلازل SOS)، الخالق، والمساهم الرئيسي في تقرير زلزال. تطبيق يبسط مجموعة الاتصال على الفور إلى الأصدقاء وأفراد الأسرة (مع الخاص exعمل موقع GPS) وتغذية باستمرار للمستخدمين مع "تقرير الزلزال" الأخبار. جنبا إلى جنب مع العائلة والأصدقاء الخاصة بك، سوف كواكيسوس يكون أقرب صديق الزلزال الخاص بك.
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